Dear Peer's.
I am a layman on electrical topics.
My question is FBE powder used for Busbar has to be tested to UL standards. UL 746B and UL1446- Class B 130 deg C. if we have a powder tested to UL 746B- Class B 130 deg C tested is it necessary to have testing to UL 1446- Class B 130 deg C...
Is there any international standard for frequencey of intelligent pigging of pipe - Internal carrying water/oil/gas.
If so can you please share the same.
A combination of vinyl ester thick film lining with acid resistant tiles on top would be a good option depending on severity of different acid content.
Is there a formulation, where by we can calculate as to max bending degree of a 20 inch OS diameter pipe of standard 12 meter length and how it can be corelated practically.
Menon
